The Jets aren’t expected to make a big splash when free agency officially starts on Tuesday, but new general manager John Idzik hopes to make some smart economic signings to fill areas of need for a team that missed the playoffs for the second consecutive season.The Daily News has learned that the Jets are targeting Cowboys outside linebacker Victor Butler to fill one of those needs. Gang Green released outside linebacker Calvin Pace a few weeks ago and unrestricted free agent Bryan Thomas isn’t expected to re-sign with the team. The Jets could go in a number of directions with the No. 9 overall pick in next month’s draft, including an outside pass rusher. Butler’s skill-set falls in line with what the Jets need with the loss of Pace and Thomas.The 6-2, 245-pound Butler, the Cowboys’ fourth-round pick in 2009, has been a backup in Dallas. He had 21 tackles, three sacks and two forced fumbles playing for Rex Ryan’s brother, Rob, last season.Butler, who has 11 sacks in four seasons, will turn 26 this summer.